Journal of Nanchang University
The Absorption and Dispersion Properties in a Four-level Inverted-Y Atomic System
Jun Zeng
Abstract
A four-level atomic system in an inverted-Y configuration interacted with three optical fields has been investigated and the properties of absorption and dispersion in different control optical fields have been discussed.The electromagnetic induced transparency would be obtained by choosing proper parameters while the optical nonlinearity of the system would be changed with external fields.The numerical results also show the probe gain via changing phases of Rabi frequency.